Buttonhole-scissors.



No. 630,455. l Patented Aug. 8, |899.

, W. J. HAZARD.`

(Application led Nov. 80, 1898.)

(No Model.)

UNITED STATES PATENT OFFICE.

WILLIAM J. HAZARD, OF GOLDEN, COLORADO.

BpUTTONHOLE-SCISSORS.

SPECIFICATION forming part of Letters Patent No. 630,455, dated August8, 1899.

Application filed November S0, 1898. Serial No. 697,321. (No model.)

T0 all whom it may concern:

Be it known that LWILLIAM J. HAZARD, a citizen of the United States ofAmerica, residing at Golden, in the county of Jefferson and State ofColorado, have invented certain new and useful Improvements inButtonhole-Scissors; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the figures ofreference marked thereon, which form a part of this specification.

My invention relates to improvements in buttonhole-scissors.

As heretofore constructed the forward Wall of the notch formed in eachblade of the device has been of triangular shape. These walls increasein thickness from the edge of the blade to the bottom of the notch.During the operation of cutting a buttonhole-slit these thick Wallsbeing forced through the cloth have a ten dency to tear it at theextremity of the slit nca-r the free edge of the garment.

My improvement consists in forming this wall of each blade with anincline or bevel extending from the outside of the blade inwardly andrearwardly, thus forming a sharp or thin edge in front of the notch,which edge will pass readily through the cloth Without any tendency totear or mutilate the fabric, all as hereinafter set forth, referencebeing made to the accompanying drawings, in which is illustrated anembodiment of the invention.

In the drawings, Figure l is a perspective view illustrating theordinary construction of buttonholescissors- Fig. 2 is a similar viewillustrating my improvement. Figisacrosssection taken on the line a: 00,Fig. 1. Fig. 4 is a similar section taken on the line y y, Fig. 2. Fig.5 illustrates the use of the old form of construction. Fig. G shows myimproved construction in use.

Similar reference characters indicating corresponding parts in theviews, let the numeral 5 designate the thick front wall of the notch inthe old form of construction, as shown in Figs. l, 3, and 5, while thenumeral G designates the tear at the slit extremity resulting from theuse of this form. Y

My improved feature is indicated at 7 in Figs. 2, et, and 6, while 8designates the slit formed thereby, as shown in Fig. 6. It will beobserved that in my improved construction the greatest thickness of thecloth-entering blade portion is located considerably forward of thefront edge of the notch and passes through the fabric at a point somedistance from the slit extremity. Hence the cloth will readily stretchwithout tearing.

Having thus described my invention, what I claim is- 1.` As an improvedarticle of manufacture, a blade for buttonhole-scissors, having thefront Wall of its notch inclined or beveled to form a thin edge.

2. As an improved article of manufacture, a pair of buttonhole-scissorshaving both blades inwardly beveled or inclined to form thin edgesforward of the notches.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM J. HAZARD.

Vitnesses:

J. W. RUBEN, PAUL MEYER.

